Saturday, September 28, 2024

ALPHA-2 ADRENERGICS AND ALZHEIMER'S DISEASE

 


A study by Chou et al has shown that patients on topical alpha-2 adrenergic monotherapy have a significantly higher risk of developing Alzheimer’s disease (AD).

The nationwide population-based cohort study utilized insurance claims data from Taiwan’s National Health Insurance Research Database between 2008 and 2019. Participants were adults aged 45 years or older either with a diagnosis of glaucoma or without.

There were 202,000 participants included in the study, with 101,000 in each group (glaucoma and control groups).

Those with glaucoma received at least one antiglaucomatous medication (including α2-adrenergic agonists, cholinergic agonists, beta-blockers, prostaglandin analogs, and pilocarpine) for over 90 days. Those with pre-existing AD diagnoses before the index date were excluded.

Glaucoma patients on topical alpha-2 adrenergic agonist monotherapy exhibited a significantly higher AD risk (aHR 1.15, 95% CI=1.011.31) compared to those on beta-blockers.

Irrespective of the type of glaucoma, individuals with glaucoma had a significantly higher risk of AD compared to those without glaucoma (POAG: aHR 1.23, 95% CI=1.081.40; NTG: aHR 1.49, 95% CI=1.191.85; PACG: aHR 1.35, 95% CI=1.191.52; unspecified glaucoma: aHR 1.36, 95% CI=1.231.50).

The study concluded that topical alpha-2 adrenergic agonists might pose increased AD risk in individuals with glaucoma compared to beta-blockers. Therefore, they should be used cautiously, especially in middle-aged and older populations. The findings also suggest that glaucoma, regardless of the type may increase the risk of AD.

REFERENCE:

Chou, CC., Lu, YA., Weng, CH. et al. The association between antiglaucomatous agents and Alzheimer’s disease. Eye (2024). https://doi.org/10.1038/s41433-024-03348-y


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ALPHA-2 ADRENERGICS AND ALZHEIMER'S DISEASE

  A study by Chou et al has shown that patients on topical alpha-2 adrenergic monotherapy have a significantly higher risk of developing Alz...